Short answer: the 7Hz Sonus II. Both are rated 4.2/5 for sound quality (#258 and #277 of 1291 in-ear headphones), and the 7Hz Sonus II costs $75.99 against $86.59 for the EPZ x Tipsy Star One, with sound quality a draw, the lower price decides it.
Why pick the 7Hz Sonus II: A hybrid dynamic and planar in-ear with a 76.5 preference score, a smooth 1.7 dB deviation and slightly warm, natural bass. Watch for: The 3 to 6 kHz presence range sits nearly 4 dB under target with a 5.2 dB dip near 6 kHz, so vocals and guitars can sound a little distant and less crisp.
Why pick the EPZ x Tipsy Star One: The median of 12 hobbyist measurements gives it a very good Harman preference score of 76 with a 1.68 dB spread. The tradeoff: Its 1.68 dB spread is less even than the best measured sets.
Buy the 7Hz Sonus II. Both are rated the same for sound quality, and it costs $10.60 less than the EPZ x Tipsy Star One.
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A hybrid dynamic and planar in-ear with a 76.5 preference score, a smooth 1.7 dB deviation and slightly warm, natural bass.
Amazon $75.99 eBay
The median of 12 hobbyist measurements gives it a very good Harman preference score of 76 with a 1.68 dB spread.
Amazon $86.59 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| 7Hz Sonus II | EPZ x Tipsy Star One | |
|---|---|---|
| Price | $75.99 | $86.59 |
| Ranked | #258 of 1291 in In-Ear Headphones | #277 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 77 (median of 2 squig.link measurements, calibrated to AutoEQ) | 76 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.66 dB standard deviation | 1.68 dB standard deviation |
| Tonal Tilt | -0.45 (negative is warmer, positive brighter) | -0.41 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 1 planar magnetic) | Dynamic |
| Drivers | 1 x dynamic + 1 x planar magnetic | 1 x 10mm dynamic |
| Impedance | 29 ohms | 64 ohms |
| Sensitivity | 108 dB/V | 112 dB |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the 7Hz Sonus II from aftersound, bassaudio and jaytiss; the EPZ x Tipsy Star One from aftersound, ankramutt, digaoreviews, jaytiss, mmagtech, musicafe, pw, regancipher, soundignity, suporsalad, tonedeafmonk and vortexreviews, all via squig.link.
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